Jar-closure.



Y No. 711,028. Patented Oct. I4, |902.

H. F. WEBB.

JAR CLUSUBE.

(Application led Apr. 10, 1902.)

fag/f (No Model.)

UNITED 'STATES PATENT OFFICE.

HENRY FITZROY WEBB, OF COUDERSPORT, PENNSYLVANIA, ASSIGNOR OF ONE-HALFTO WILLIAM II. RICHARDS AND WILLIAM A. SIIEAR, OF COU- DERSPORT,PENNSYLVANIA.

JAR-CLOSU RE.

SPECIFICATION forming part of Letters Patent No. 711,028, dated October14, 1902. Application filed April 10, 1902. Serial No. 102,291. (Nomodel.)

T L7/Z whom, t 71mg/ concern:

Beit known that I, HENRY FITZROY WEBB, a citizen of the United States,residing at Coudersport, in the county of Potter and State ofPennsylvania, have invented certain new and useful Improvements inJar-Closures; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the zo art to which it appert'ains to make and use the same.

This invention relates to jar-closures, the object in view being toprovide a closure for hermetically sealing preserving and otherjars,atthesametime obtainingtheadvantage of a large mouth and an equalapplication of pressure of the closure directly upon the rim at themouth of the jar.r The particular combination and arrangement of thejar, closure,

zo gasket, and fastening device bring the pressure of the fasteningdevice upon the closure directly over the gasket. IVith the improvedclosure a jar with practically no neck may be employed, thus giving amouth of maximum size, a fiat rim Without projections or recesses on itsupper surface, and a closure with a practically flat upper surface.

'With the above and other objects in View the invention consists in thenovel construction, combination, and arrangement of parts, ashereinafter fully described, illustrated,and claimed.

In the accompanying drawings, Figure 1 is a vertical diametrical sectionthrough the upper portion of a jar, showing the improved closure andfastening means. Fig. 2 is a top plan view of the same. Fig. 3 ,is aside elevation of the upper portion of the jar, showing the rim thereofwith its inclined or sloping faces. Fig. d is a plan view of the same.Fig. is a View in elevation of the springwire fastener. Fig. 6 is adiametrical section through a modified form of closure. Fig. 7 is a sideelevationv similar to Fig. 23, partly broken away and showing the mouthof the jar the full size of the jar-body.

.Like reference-numerals designate corresponding parts in all thefigures of the drawings. l

5o Referring to the drawings, 1 designates the body of a jar which incarrying out the present invention is provided at its upper edge with arim 2, Which projects outward beyond the outer surface of the neckportion of the jar to allow the hooked extremities of the fasteningdevice hereinafter described to eX- tend beneath said rim. The uppersurface of the rim 2 is perfectly flat and smooth, as shown, said rimbeing broken only by a pair of notches 3, located at diametrically oppo-6o site points, as shown in Fig. 4'.

The portions of the rim 2 intervening between the notches 3 are ofvariable thickness, or, more accurately speaking, thelower surfaces ofsuch portions of the rim are pitched, inclined, or sloped I graduallyand evenly from one notch to the other, the under sides of both portionsof the rim being inclined equally in the same direction, as indicated inFig. 3. 7o

The jar-closure (indicated at L) is in the shape of a disk having apractically iiat upper surface 5 and provided With a central recess orsocket 6, the purpose of which Will hereinafter appear. The top side ofclosure is very slightly inclined toward its center, or it may be madein 4other ways-for instance, by providingthe circular bead 7 at itsperiphery, to thereby bring the pressure of the wire fastenerparticularly upon the outside of the 8o top of the closure directly overthe gasket. The closure is of sufficient thickness to fit within theneck of the jar, as shown in Fig.

1, and is provided with a circumferential fiange 8, which extends overthe rim 2, a gasket or ring 9 being interposed between the flange S andrim 2, as shown in Fig. 1, to provide an air-tight joint. By referenceto Fig.

l it will be seen that the highest part upon the surface of the closureis directly above 9o the point of application of gasket 9, so that thepressure exerted by the fastening device on the closure is directly overthe gasket.

The fastening device (shown at 10) is formed of a piece of spring-wirebent or folded upon itself centrally to provide a pendent oifset 11,which is adapted to be received in the socket or recess G of theclosure. The fastening device also comprises oppositely-extendin g arms12, the outer portions of which are bent roo downward, as at 13, andformed with terminal hooks 14, which are designed to engage beneath therim 2 of thejar, as shown in Fig. 1. The pendent offset 11 forms apivotal connection between the spring-wire fastener and the closure andenables the fastener to be rotated to bring the terminal hooks 14 intoproper frictional engagement with the inclined lower surfaces of the rim2. It will also be noted that the pendent offset 11 extends downward asfar as the hooked eX- tremities of the arms of the fastener and that thesocket in the closure is of suiiicient depth to receive such oset. Theadvantage of this arrangement is that the fastener is prevented frombecoming accidentally detached from the closure, rendering it necessa-ryto apply force to remove the fastener.

From the foregoing description it will be understood that the uppersurface of the rim at the top of the jarissmooth and practicallyunbroken, which greatly facilitates cleaning. The upper surface of theclosure is also practically smooth and flat, thereby adding to thepractical utility of the closure as a whole by doing away withobjectionable projections. Another important feature of the inventionresides iu the fact thatl the mouth of the jar may be made of anydesired size and, if required, of the full size of the body of the jar,which constitutes an important item in the cleaning of jars after theyhave been emptied of their contents. It will further be noted that thepressure of the fastening device is at the outer` edge of the closuredirectly over the rim of the jar.

The arms 12 of the fastening device must be of equal length, and theterminal portions 13 must be of a length equal to the combined thicknessof the cover at its outside edge or thickest part and the thickness ofthe rim of the jar next to the notches 3.

The diameter of the closure is in such proportion to the diameter of theneck and the notches in the rim of the jar and the distance between thepoints of the fastener 14 so regulated that when the fastener is onceattached to the closure it cannot become separated therefrom except byforce, and is therefore always ready for instant application to the jar.The closure can be made of glass or other suitable materials.

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is-

As an article of manufacture, the combination of a jar provided with arim extending around the mouth thereof, notches in the rim located atdiametrically opposite points, cam-V surfaces upon the under side of therim and extending from one notch to the other, a closure having anannular fianged portion to extend over the rim of the jar, the uppersurface of the closure having a concave depression extending from theperiphery thereof, and a socket or recess located in the center of thesaid depression, a spring-wire fastener having its end portionsdownwardly and inwardly bent to form hooks to engage the camsurfacesupon the rim and having a pendent offset portion at the center thereofextending into the aforesaid recess upon the closure and cooperatingtherewith to prevent displacement of the fastener from the closure, thesaid oifset portion being approximately of the same length as thedownwardly-bent ends of the fastener, substantially as and for thepurpose set forth.

In testimony whereof I afx my signature in presence of two witnesses.

HENRY FITZROY WEBB. [1.. s] Witnesses:

F. H. MCGINNIS, B. McGINNIs.

